杭瑞高速洞庭湖大桥高精度控制网的建立方法  

Methods for establishing high precision control network of Hangrui Expressway Dongting LakeBridge

作　　者：王国华 缪浩 WANG Guohua;MIAO Hao(Hunan Hetian Engineering Project Management Co.,Ltd.,Changsha 410000,Hunan,China)

机构地区：[1]湖南和天工程项目管理有限公司,湖南长沙410000

出　　处：《工程建设》2021年第1期65-68,73,共5页Engineering Construction

摘　　要：针对杭瑞高速洞庭湖大桥地处复杂测量通视环境的状况,本文采用GNSS静态网与三角网相结合的方法建立了高精度二等平面控制网,采用跨河水准与陆地几何水准相结合的方法建立了高精度二等水准网,为大桥长达4余年的施工期及运营期监测工作提供了有力的测量基准保障。本文研究结果可为同区域大型工程施工或同类型桥梁施工控制网的建立提供一定的借鉴与参考。In view of the situation where the Hangrui expressway Dongting lake bridge is located in a complex environment of instrumentation and intervisibility,the combination between GNSS static network and triangulation network is adopted to complete the establishment of high-precision second-class plane control network,and the combination between cross-river leveling and land geometric leveling is adopted to complete the establishment of high-precision second-class leveling network.The two methods provide a strong measurement benchmark guarantee for the monitoring work during the over four years construction and operation phases of the Dongting Lake Bridge.The research results can provide some references for the construction of large-scale projects in the same area or the establishment of bridge construction control network of the same type.

关 键 词：洞庭湖大桥 平面控制网 跨河水准 

分 类 号：U442[建筑科学—桥梁与隧道工程]